commentFormatting: put a space between `//` and comment text (gocritic)

issues found

The following actions use a deprecated Node.js version and will be forced to run on node20: golangci/golangci-lint-action@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

early-return: if c { ... } else { ... return } can be simplified to if !c { ... return } ... (revive)

unused-parameter: parameter 'message' seems to be unused, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'balance' seems to be unused, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'signer' seems to be unused, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'changeOwner' seems to be unused, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'message' seems to be unused, consider removing or renaming it as _ (revive)

unused-receiver: method receiver 'd' is not referenced in method's body, consider removing or renaming it as _ (revive)

unused-receiver: method receiver 'd' is not referenced in method's body, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'validationID' seems to be unused, consider removing or renaming it as _ (revive)